Hi My Students who are doing CA range have first degrees ranging from Maths to Economics to Law; you can do a degree in accounting but to become CA, you need to work with an accounting firm while studying for exams, hich most people do after a different first degree.
The advice from emilou is sensible in keeping your options open, and because you got As in GCSE sciences, you should be fine with A level Physics. Another point to consider is what subjects interest you, because when you have a passion for anything in life, you naturally excel in that aspect of study/work.
English A level is tough, especially after the, in my view, poor syllabuses of GCSE English in UK these days, which place little emphasis on core grammar, punctuation, vocabulary (syntax). On the other hand, your grade of B in English is q good, so if you like the subject, you will do well.
Think globally, interest, ability, ease of scoring high marks, your style of learning, etc before making a decision.
Hope this helps!
(A Level Biology Specialist)